Selective recovery of indium from the etching waste solution of the flat-panel display fabrication process

Recovery of the Rare Metals from Various Waste Ashes with the Aid of Temperature and Ultrasound Irradiation Using Chelants

“…For example, in Japan, 31 ores, including the rare earth elements as a group, have been designated as rare metals in terms of the concern in securing a stable supply of resources (Kawamoto 2008). Consequently, other than the refinery production, the reclaim processing of rare metals from secondary resources, such as process discards from the rare metal-consuming manufacturing schemes (Hsieh et al 2009, Liu et al 2009, Kang et al 2011, Li et al 2011, Park 2011, Virolainen et al 2011, Hasegawa et al 2013b or end-oflife electronic products (Shimizu et al 2005, Cui & Zhang 2008, Rabah 2008, Bertuol et al 2009, Binnemans et al 2013, Hasegawa et al 2013c, Hasegawa et al 2013a, received sincere focus from the researchers.Municipal solid waste (MSW) management is in crisis in many of the world's largest urban areas as populations are continued to grow, which creates an increase in the waste quantities, while disposal places, such as sanitary landfills around the periphery of the cities, are decreasing. The alternative approach that has caught the attention of decision makers is the mass burn incineration that is increasingly practiced in the OECD (Organisation for Economic Co-operation and Development) countries (Anonymous 1999).…”

Selective separation of elements from complex solution matrix with molecular recognition plus macrocycles attached to a solid-phase: A review

“…The SPE-systems with molecular recognition capabilities have been used for the recovery of rare-termed metals (e.g., indium) from the end-of-life e-waste [152] or from the waste effluent from the production process [153]. The macrocycle-immobilized AnaLig PMseries SPE systems have been used for the selective recovery of the precious metals, such as, Pt, Au, Pd [154,155].…”

Selective recovery of indium from lead-smelting dust

“…Discrepancies in demand, supply and price are therefore observed. The search for alternate sources of raw indium is vital from the point of view of resource strategy, and this search is focused mostly on the processing of indium-laden waste materials, e.g., ITO scrap [2, 6-8], end-of-life liquid crystal displays [6,[9][10][11] and etching waste [12][13][14].…”

“…Discrepancies in demand, supply and price are therefore observed. The search for alternate sources of raw indium is vital from the point of view of resource strategy, and this search is focused mostly on the processing of indium-laden waste materials, e.g., ITO scrap [2, 6-8], end-of-life liquid crystal displays [6,[9][10][11] and etching waste [12][13][14].The residue and flue dust from the smelting of non-ferrous metals, such as lead, termed lead smelting dust or LSD hereafter, also includes indium [15] and is expected to be a novel indium resource. Acid leaching is commonly employed for metal smelting from waste resources [16][17][18].…”